在2d数组python 3.x中组合元素

def combine_elements(array):
    result = []
    for i in range(len(array)):
        for j in range(len(array[i])):
            for k in range(i, len(array)):
                for l in range(j, len(array[k])):
                    result.append((array[i][j], array[k][l]))
    return result

# 示例输入
array = [[1, 2, 3],
         [4, 5, 6],
         [7, 8, 9]]

# 调用函数进行组合
combined_elements = combine_elements(array)

# 输出结果
for element in combined_elements:
    print(element)

(1, 1)
(1, 2)
(1, 3)
(2, 2)
(2, 3)
(3, 3)
(4, 4)
(4, 5)
(4, 6)
(5, 5)
(5, 6)
(6, 6)
(7, 7)
(7, 8)
(7, 9)
(8, 8)
(8, 9)
(9, 9)